The only name his fans know him by ,is MattyB, probably to protect his privacy. He has his own channel on youtube.com, just search "MattyB or MattyBraps"! I found out he is a middle child, his parents may have let him start his youtube channel as a way to prevent or reverse the "Middle Child Syndrome", they often get overlooked in a lot of ways! I know 1st hand, I was a middle too! they can get to the point that they feel very worthless and unimportant, I've had self esteem issues, all of my life.  Matty is SUCH a cutie! and joy to watch!